Adjustable threshold



This invention relates to door thresholds, and more particularly to a threshold, adapted to beadjustedin height to providea close seal with respect tovthe bottom of a door.

A main object of the invention is to provide a novel and improved threshold assembly which is simple in convflitsd Pa ber 22may be adjusted by rotating the respective headed supporting screws 25 and 26.

After the bar member 22 has been adjusted to its de-.

sired height, additional headed fastening means, comprising the wood screws 27 are engaged through apertures provided in the top wall 28 of the bar member22 and vare driven through the underlying floor member 20,

. asshown in Figure 3, to lock the bar member 22 in its struction, which is easy to install, and'which may'be readily adjusted to provide va tight seal with respect to the bottom edge ofthe door associated therewith.

proved adjustable threshold assembly which involves inexpensive components, which is durable in construction,

which is easy to maintain, and which is neat in appearance.

Further objects and advantages of the invention will become apparent from the following description and claims, and from the accompanying drawings, wherein:

Figure 1 is a fragmentary perspective view ofv a threshold assembly according to the present invention.

Figure 2 is a bottom perspective view of a fragmentary portion of the thresholdassembly of Figure 1.

Figure 3 is an enlarged transverse vertical cross sectional view taken substantially on the line 3--3 of Fig ure 1.

Figure 4 is a transverse vertical cross sectional view similar to Figure '3 but showing a modified form of threshold assembly according to the present invention.

Referring to the drawings, and more particularly to Figures 1, 2 and 3, 11 generally designates a threshold assembly constructed in accordance with this invention.

The assembly 11 comprises an elongated riser strip 12 ginal edges 16, 17 of the approach wall members 13, 14.

The cross bars 15 are formed to define the substantially rectangular notches 18 which are of sufiicient width to allow the marginal edge portions 16, 17 of the approach wall members to overlie the end portionsof the notches, as is clearly shown in Figure 3. r

The cross bar elements 15 are formed with downwardly concave edge portions .19 adapted to bridgingly engage over the joints between abutting floor elements 20 and 21 and to allow for slight differences in'height of the top surfaces of said abutting elements.

Designated at 22 is a generally channel-shaped downwardly facing bar member which is disposed in the recess defined between the marginal edge portions 16, 17 of the approach wall elements 13, 14 and which is vertically slidable therein. The channel-shaped bar member 22 V is provided at its bottom edges with the outwardly exa justed positions, and to prevent the bar member 22 from-being further elevated by the screws 25, 26.

The respective side marginal portions of the top wall of bar member 22 are formed with inwardly facing loclging channel elements 30, 31, in which are received ther espective longitudinal edge portions of an elongated upwardly arched sealing strip 32 of resilient deformable material, such as rubber or the like, which covers the headed fastening members 27. The arched resilient deformable strip 32 rises a sufiicient distance above the bar member 22 to sealingly engage with the bottom edge of a door 34 overlying the threshold.

As will be readily apparent, the height of the bar member 22 may be adjusted to provide a desired degree of sealing pressure of the resilient deformable strip 32 against the bottom edge of the door 34.

In the form of the invention illustrated in Figure 4, the assembly is designated generally at 11' and comprises the same riser strip member 12 as is employed in the embodiment illustrated in Figures 1 to 3. However, the channel-shaped bar member, shown at 22, is formed with a horizontal top wall 40 projecting forwardly at one side margin thereof to define a horizontal marginal flange 41 of substantial width overlying the marginal edge portion 17 of the approach wall element 14. The flange 41 is adapted to sealingly interengage with the conventional metal weather strip member 43 fastened to the bottom edge of a door 34, the door being provided with the depending lip 44 against which the channeled portion of the conventional weather strip element 43 is received, as is clearly shown in Figure 4. Thus, by

- modifications within the spirit of the invention may occur tending horizontal flanges 23 and '24 which underlie the to those skilled in the art. Therefore, it is intended that no limitations be placed on the invention except as defined by the scope of the appended claims.

' What is claimed is: V

1. A threshold assembly comprising an elongated riser strip having spaced upwardly and inwardly inclined side marginal approach walls defining an elongated recess therebetween extending parallel to said approach walls, a generally channel-shaped, downwardly facing bar member disposed in said recess and being vertically adjustable therein, outwardly extending horizontal flanges on the bottom edges of said bar member underlying the inner marginal portions of said approach walls, and a plurality of vertical headed adjusting screws having ex- Patented Aug: 2, 1960 i posed headsand extending through said inner marginal portionsof the approach walls and supportingly engaging said inner marginal portions at their heads and threadedly engaging said flanges at their shanks, whereby' to adjustably support said bar member;

2 A threshold assembly comprising an elongated'riser strip having spaced upwardly and inwardly inclined-side marginal approach walls defining an elongated recess therebetween extending parallel to said approach walls, a generally channelshaped, downwardly facing bar member disposed in said recess and being vertically ad justable therein, outwardly extending horizontal flanges on the bottom edges of said bar member underlying the inner marginal portions of said approach walls, a plurality of vertical headed adjusting screws having exposed heads and extending through said inner marginal portions of the approach walls and supportingly engaging saidinner marginal portions at their heads and threadedly engaging said flanges at their shanks, whereby to adjustably support said bar member, and headed fastening means extending through the top wall of said bar member and being engageable with an underlying floor portion to secure said bar member to said floor portion after it has been'vertically adjusted.

3; A threshold assembly comprising an elongated riser strip having spaced upwardly and inwardly inclined side marginal approach walls defining an elongated recess therebetweenextending parallel'to said approach walls, a generally channel-shaped, downwardly facing bar member disposed in said recess and being vertically adjustable therein, outwardly extending horizontal flanges on the bottom edges of said bar member underlying the inner marginal portions of said approach walls, a plurality of vertical headediadjusting screws having exposed heads and extending. through said inner marginal portions of the approach wallsandsupportingly engaging said innermarginalrportions at their heads gandthreadedly engagingsaid flanges at their shanks, whereby to adjustably support saidbar member, headed fastening means extending through the top wall of said bar member and being engageable with an underlying floor portion to secure said bar member to said floor portion after it has been vertically adjusted, and an elongated, upwardly arched sealing strip of resilient deformable material mounted onthetopwall of 'said bar member and covering said headed-fastening means.

' References Cited in the file of this patent UNITED STATES PATENTS McEvoy et'al. Nov. 4, 1958 

